diff options
Diffstat (limited to 'misc/cgo/errors/errors_test.go')
-rw-r--r-- | misc/cgo/errors/errors_test.go | 166 |
1 files changed, 166 insertions, 0 deletions
diff --git a/misc/cgo/errors/errors_test.go b/misc/cgo/errors/errors_test.go new file mode 100644 index 0000000..8168032 --- /dev/null +++ b/misc/cgo/errors/errors_test.go @@ -0,0 +1,166 @@ +// Copyright 2017 The Go Authors. All rights reserved. +// Use of this source code is governed by a BSD-style +// license that can be found in the LICENSE file. + +package errorstest + +import ( + "bytes" + "fmt" + "os" + "os/exec" + "path/filepath" + "regexp" + "strconv" + "strings" + "testing" +) + +func path(file string) string { + return filepath.Join("testdata", file) +} + +func check(t *testing.T, file string) { + t.Run(file, func(t *testing.T) { + t.Parallel() + + contents, err := os.ReadFile(path(file)) + if err != nil { + t.Fatal(err) + } + var errors []*regexp.Regexp + for i, line := range bytes.Split(contents, []byte("\n")) { + if bytes.HasSuffix(line, []byte("ERROR HERE")) { + re := regexp.MustCompile(regexp.QuoteMeta(fmt.Sprintf("%s:%d:", file, i+1))) + errors = append(errors, re) + continue + } + + if _, frag, ok := bytes.Cut(line, []byte("ERROR HERE: ")); ok { + re, err := regexp.Compile(fmt.Sprintf(":%d:.*%s", i+1, frag)) + if err != nil { + t.Errorf("Invalid regexp after `ERROR HERE: `: %#q", frag) + continue + } + errors = append(errors, re) + } + + if _, frag, ok := bytes.Cut(line, []byte("ERROR MESSAGE: ")); ok { + re, err := regexp.Compile(string(frag)) + if err != nil { + t.Errorf("Invalid regexp after `ERROR MESSAGE: `: %#q", frag) + continue + } + errors = append(errors, re) + } + } + if len(errors) == 0 { + t.Fatalf("cannot find ERROR HERE") + } + expect(t, file, errors) + }) +} + +func expect(t *testing.T, file string, errors []*regexp.Regexp) { + dir, err := os.MkdirTemp("", filepath.Base(t.Name())) + if err != nil { + t.Fatal(err) + } + defer os.RemoveAll(dir) + + dst := filepath.Join(dir, strings.TrimSuffix(file, ".go")) + cmd := exec.Command("go", "build", "-gcflags=-L -e", "-o="+dst, path(file)) // TODO(gri) no need for -gcflags=-L if go tool is adjusted + out, err := cmd.CombinedOutput() + if err == nil { + t.Errorf("expected cgo to fail but it succeeded") + } + + lines := bytes.Split(out, []byte("\n")) + for _, re := range errors { + found := false + for _, line := range lines { + if re.Match(line) { + t.Logf("found match for %#q: %q", re, line) + found = true + break + } + } + if !found { + t.Errorf("expected error output to contain %#q", re) + } + } + + if t.Failed() { + t.Logf("actual output:\n%s", out) + } +} + +func sizeofLongDouble(t *testing.T) int { + cmd := exec.Command("go", "run", path("long_double_size.go")) + out, err := cmd.CombinedOutput() + if err != nil { + t.Fatalf("%#q: %v:\n%s", strings.Join(cmd.Args, " "), err, out) + } + + i, err := strconv.Atoi(strings.TrimSpace(string(out))) + if err != nil { + t.Fatalf("long_double_size.go printed invalid size: %s", out) + } + return i +} + +func TestReportsTypeErrors(t *testing.T) { + for _, file := range []string{ + "err1.go", + "err2.go", + "err5.go", + "issue11097a.go", + "issue11097b.go", + "issue18452.go", + "issue18889.go", + "issue28721.go", + "issue33061.go", + "issue50710.go", + } { + check(t, file) + } + + if sizeofLongDouble(t) > 8 { + for _, file := range []string{ + "err4.go", + "issue28069.go", + } { + check(t, file) + } + } +} + +func TestToleratesOptimizationFlag(t *testing.T) { + for _, cflags := range []string{ + "", + "-O", + } { + cflags := cflags + t.Run(cflags, func(t *testing.T) { + t.Parallel() + + cmd := exec.Command("go", "build", path("issue14669.go")) + cmd.Env = append(os.Environ(), "CGO_CFLAGS="+cflags) + out, err := cmd.CombinedOutput() + if err != nil { + t.Errorf("%#q: %v:\n%s", strings.Join(cmd.Args, " "), err, out) + } + }) + } +} + +func TestMallocCrashesOnNil(t *testing.T) { + t.Parallel() + + cmd := exec.Command("go", "run", path("malloc.go")) + out, err := cmd.CombinedOutput() + if err == nil { + t.Logf("%#q:\n%s", strings.Join(cmd.Args, " "), out) + t.Fatalf("succeeded unexpectedly") + } +} |